28771379

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{47}}^1$

素因数の和:136

約数の個数: 36

約数和(自身を含む): 38035872

約数和(自身を除く): 9264493

約数列:

[1, 7, 13, 31, 47, 49, 91, 217, 329, 403, 611, 637, 961, 1457, 1519, 2303, 2821, 4277, 6727, 10199, 12493, 18941, 19747, 29939, 45167, 47089, 71393, 87451, 132587, 316169, 587171, 612157, 928109, 2213183, 4110197, 28771379]

約数ペア:

[(1, 28771379), (7, 4110197), (13, 2213183), (31, 928109), (47, 612157), (49, 587171), (91, 316169), (217, 132587), (329, 87451), (403, 71393), (611, 47089), (637, 45167), (961, 29939), (1457, 19747), (1519, 18941), (2303, 12493), (2821, 10199), (4277, 6727)]